Thursday 14 January 2010

Global warming, is it only linked to human CO2 production?

I've watched and read a little on this topic over the last few months, trying to find an unbiased and comprehensive review of the information and evidence. Is it me or is that difficult to find?

I'm left with a few questions:

When direct temperature data is not available, they use proxy data. Commonly tree ring data is quoted. In a hot year trees grow more thus capturing more carbon? So what is the estimated carbon capture increase from this and other vegetation growth?

What is the estimated burden of the combined effect of the forest fires e.g. California and Australia and volcanic activity?

Why do we as a race still support deforestation in key parts of the world?

Does carbon offsetting actually work?

I have several other questions, perhaps you would add yours or indeed any answers you may have.